OLH400

High-speed Hermetic Low Input-Current Optocoupler

The OLH 400 has high current transfer ratio at very low input currents making it ideal for applications such as Metal Oxide Semiconductor (MOS), Complementary MOS (CMOS), and low power logic interfacing or RS232C data transmission systems. Each OLH 400 has a light emitting diode and an integrated photodiode Darlington detector IC mounted and coupled in a custom hermetic TO-5 package providing 1000 Vdc electrical isolation between input and output. The Darlington detector has an integrated base to emitter resistor for superior high temperature performance. The split Darlington design permits lower output saturation voltage and higher switching speed operation than possible with conventional photodarlington design. The internal shield provides excellent common mode immunity performance.

Data Sheets

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Specifications

Product LifecycleIn Production

Memo

ConditionCTR @ IF = 0.5 / 5 mA

CTR Min.300 / 200

CTR Max.—

BV_CEO (V)—

Vcc Max. (V)20

Propagation Delay100µs Max.

Isolation @ V_DC 1 Sec.1000

Package Photo

Package Info6-Lead Hermetic TO-5

Radiation TolerantYes

Features

Electrical parameters guaranteed over –55 °C to +125 °C ambient temp. range
1000 Vdc electrical isolation
Low input current - 0.5 mA
Low output saturation voltage - 0.1V typical
High current transfer ratio - 1000% typical
Low power consumption
Similar to industry standard parts - 6N138 / 6N139 in plastic and 6N140 in hermetic DIP packages
Radiation Tolerant
100% hi-rel screenings are offered

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